Thanks to everyone for your honesty and support. Had a good meeting with IC, basically reinforcing the same concepts. I've been living in fear of 'losing' W when in reality it's nothing I can control.
IC said that I seemed to be in 'acceptance', or at least closer to it. We also talked about how W shows, by her interactions with D17 / D13, that she has difficulty dealing with difficult situations as an adult.
Anyway, I'm learning to convert 'guilt' into 'regret' because, as she said, you can file regret in your library of lessons.
And for all of you, including me, who doubted W's ability to move forward with the divorce, she just came into my office a few minutes ago and told me she had retained a 'Legal Document Assistant' that she could afford who will help us write up the papers for an uncontested divorce.
She said "I just want you to know that I've started the process and they'll be sending you some documents". She didn't seem particularly happy or sad.
I just said 'ok' in as pleasant a voice I could muster.
This was right after she told me she was going to the grocery store to get some 'things' for her Thursday night with the girls and was there anything I could think of that 'we' needed.